A free browser tool for practising your whistling. Play along with a tune, watch your pitch as you go, and see exactly which notes you missed when you finish. 12 songs, no download, no account.
Start with Twinkle, Twinkle or Mary Had a Little Lamb — few notes, small steps, easiest to get right.
Coloured bars slide in from the right — those are the notes. The white line is what you are producing. Keep the line on the bars.
You get a score for pitch, timing and coverage, plus a full pitch trace showing exactly which phrase went off.
Not a vague "close enough" — every note is marked sharp or flat, and by how much.
Everyone can reach different notes. Move the whole tune up or down in one tap; the melody is the same and your score is unaffected.
Drop to half speed while you learn a phrase, then work back up to tempo.
The daily challenge is the same tune worldwide. See where you land, and send a card to a friend to beat.
Purse your lips into a small round opening, keep your tongue flat with the tip resting just behind your lower teeth, and blow a small, steady stream of air — gently, not hard. Most people who get only air are either holding their lips too loosely or blowing too hard. Dry lips will not seal either, so wet them first. If nothing works, try whistling on the in-breath; many people find a sound that way before they manage it blowing out.
Pitch when whistling comes from the volume of your mouth cavity: tongue back and low gives a lower note, tongue forward and high gives a higher one. Being off-key is usually not a wrong note but a slide that went too far or not far enough. The fastest fix is to play a simple tune you already know at half speed and watch whether your pitch line sits on the target notes or consistently beside them.
Completely free, every song, no sign-up and no login. If you want to appear on a leaderboard you just pick a display name — no email, no password.
Yes. Open it in your mobile browser and allow microphone access. It has to be an https page — browsers only grant the microphone in a secure context. Headphones are worth using, otherwise your mic picks up the click track.
No. All audio is processed inside your own browser. The only thing that ever leaves your device is a score (song, points, display name) and only when you choose to post to a leaderboard. No recording is ever stored or transmitted.
Yes. Start on the range-test page and just make any sound at all — once the line on screen moves, you know the microphone is picking you up, and that step needs no whistling skill. The beginner guide has a full section on getting your first note out.
Whistling range varies a lot; most people have somewhere between one and two registers. Every song can be shifted up or down in one tap — same melody, just at a height you can actually produce, and it does not affect your score. Take the range test once and the suggested shift will match your comfortable range.
Everything in the catalogue is out of copyright — traditional folk melodies and classical pieces that anyone may use freely. For a pop song, even with backing we synthesise ourselves, using the melody requires a publishing licence first. You can vote on the homepage for the ones you want most.